CONTROL APPARATUS FOR LNG PRODUCING SYSTEM

The present invention relates to a control apparatus of an LNG production system. More specifically, according to an embodiment of the present invention, the control apparatus of an LNG production system controls a heat exchanger, which exchanges heat among NG, a light coolant (MRL) supplied in a ga...

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Bibliographische Detailangaben
Hauptverfasser:	WON, WANG YUN, PARK, KYUNG TAE, LEE, SUN KEUN
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL BLASTING CHEMISTRY COMBINED HEATING AND REFRIGERATION SYSTEMS FIRELIGHTERS FUELS FUELS NOT OTHERWISE PROVIDED FOR HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS LIQUEFIED PETROLEUM GAS LUBRICANTS MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING METALLURGY MIXTURES BY PRESSURE AND COLD TREATMENT NATURAL GAS PEAT PETROLEUM, GAS OR COKE INDUSTRIES REFRIGERATION OR COOLING SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K TECHNICAL GASES CONTAINING CARBON MONOXIDE WEAPONS
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Beschreibung
Zusammenfassung:	The present invention relates to a control apparatus of an LNG production system. More specifically, according to an embodiment of the present invention, the control apparatus of an LNG production system controls a heat exchanger, which exchanges heat among NG, a light coolant (MRL) supplied in a gas phase from a separator of a coolant supply means, and a heavy coolant (MRH) supplied in a liquid phase from the separator to produce LNG. The control apparatus includes: an LNG thermometer which measures the temperature of LNG discharged from the heat exchanger; an LNG flow-meter which measures a flow volume of LNG discharged from the heat exchanger; and an LNG control unit which receives the temperature of LNG measured by the LNG thermometer and the flow volume measured by the LNG flow-meter, and controls the flow volume of LNG to satisfy a predetermined LNG production amount in the range in which the temperature of LNG does not surpass the predetermined upper limit temperature of LNG.